Hawley, Amos Henry. <br/><br/>
Human ecology :  a theory of community structure / 
Amos H. Hawley 
 - New York :  Ronald Press Co.,  c1950. 
 - xvi, 456 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology.<br/>Ecology.
<br/><br/><label>Dewey Class. No.: </label>304.2  / HAH 1950